I read it as only referring to RB and WM as well, particularly as ATOC expressed a desire to reduce the number of maps in the same paragraph. They've reduced the number of routes each map is used on by about 4%, but almost every change they have made has been to reduce ticket validity.
There are a few exceptions. The following have added some mapped routes and deleted others:
Bath Spa (BTH) and Coventry (COV) - added sequence 'PC+SM'
Bath Spa (BTH) and Coventry (COV) - removed sequence 'RB'
Add via Trowbridge. Remove via Nuneaton and via Warwick.
Bath Spa (BTH) and STRATFORD U GROUP (G72) - added sequence 'PC+SM'
Bath Spa (BTH) and STRATFORD U GROUP (G72) - removed sequence 'RB'
Add via Trowbridge. Remove via Birmingham and via Coventry.
Bath Spa (BTH) and WARWICK GROUP (G73) - added sequence 'PC+SM'
Bath Spa (BTH) and WARWICK GROUP (G73) - removed sequence 'RB'
Add via Trowbridge. Remove via Birmingham and via Coventry.
Chippenham (CPM) and Leamington Spa (LMS) - added sequence 'BL+WM+BB'
Chippenham (CPM) and Leamington Spa (LMS) - added sequence 'BW+GC'
Chippenham (CPM) and Leamington Spa (LMS) - added sequence 'PC+SM'
Chippenham (CPM) and Leamington Spa (LMS) - removed sequence 'BL+RB'
Chippenham (CPM) and Leamington Spa (LMS) - removed sequence 'BW+RB'
Chippenham (CPM) and Leamington Spa (LMS) - removed sequence 'RB'
Add via Rugby. Remove via Reading and via Westbury, as well as a few other more complex routes (for instance, you can still go via Swindon and Nuneaton, but can't go via Bath and Nuneaton).
Eastleigh (ESL) and Nuneaton (NUN) - added sequence 'XR+SM'
Eastleigh (ESL) and Nuneaton (NUN) - added sequence 'XR+SM+BG'
Eastleigh (ESL) and Nuneaton (NUN) - added sequence 'XR+SM+TV'
Eastleigh (ESL) and Nuneaton (NUN) - removed sequence 'BW+BM'
Eastleigh (ESL) and Nuneaton (NUN) - removed sequence 'RB+BP'
Eastleigh (ESL) and Nuneaton (NUN) - removed sequence 'RB+WM'
Add the shortest route between the routeing points.
Remove via Tamworth, and also via Bramley and Birmingham. Also removes routes via Romsey, although I don't know if there are any tickets you could have used to take advantage of those routes as the tickets between Eastleigh and Nuneaton themselves are all "via London" or "via Oxford".
Chippenham (CPM) and Nuneaton (NUN) - added sequence'RB'
Chippenham (CPM) and Nuneaton (NUN) - removed sequence 'RB+BP'
Add via Birmingham International and via Bedworth.
This is the only route which has had mapped routes added but none removed. As the sequence they've added uses one of the maps they want to remove, this may not last.
The following haven't gained or lost any mapped routes:
Brockenhurst (BCU) and Leamington Spa (LMS) added sequence 'XR+SM'
Denmark Hill (DMK) and Gatwick Airport (GTW) added sequence 'FN+BU+VB'
Havant (HAV) and Leamington Spa (LMS) - removed sequence 'RB'
SOUTHAMPTON GROUP (G26) and Leamington Spa (LMS) added sequence 'XR+SM'
All of the other map changes which were published on Friday reduce ticket validity.
In addition to the changes they mention in the summary, they've also removed associated routeing points from a couple of stations.
Sherburn In Elmet is associated with Leeds, Pontefract and York.
It was also associated with Selby.
South Milford is associated with Leeds and Selby.
It was also associated with Pontefract and York.
This means that an "any permitted" tickets from Sherburn in Elmet to Selby is now valid on something other than the most direct route, but I don't know what its wider effects are.
On a final note, I would have thought that, if the intention is to reduce the number of maps in use, the maps which are hardly used now seem like a better place to start. For instance, TH is only used for routes between London and Tottenham Hale. It provides two routes, one via Stratford (which is also on EA and on CO) and one via Hackney Downs (also included on LI). The map could be removed very easily without affecting ticket validity at all.