There is a big difference at many stations between perception and reality. Take Barnstaple. Once a large junction of five lines (to Exeter, Bideford, Ilfracombe, Lynton and Taunton) with many through trains to London, Birmingham and the North, now a single track terminus at the end of a long branch line from Exeter. It looks quite sorry compared to its glory days.
And yet... probably busier than it's ever been with a consistent hourly service to Exeter St Davids for mainline connections and Exeter Central for the city centre. A route which was served 25 years ago by a largely 2 hourly service frequently consisting of single 153s, which is now generally served by 3 car 158s and 166s. More of a daily southbound commuter, student and shopper flow into Exeter, but usually plenty of northbound folk as well.
It also has a fairly well integrated bus network with services every 15 minutes to Bideford and 30 minutes to Ilfracombe. Buses in North Devon also seem much cheaper than other parts of the Westcountry.
Of those stations which have been mentioned, Weymouth and Exmouth are also examples of stations which may be much smaller, but the (pre-COVID) frequency is the best it's ever been (albeit in the former case only the Waterloo route; the frequency on the Heart of Wessex has been the same for the last 30 years).
It's easy to look at stations serving seaside resorts through rose-tinted spectacles and assume that the photos from their heyday are typical. They were only typical of summer Saturdays; a Tuesday in March or a Thursday in November would be rather different.
Poole was mentioned at the start, but pre-electrification in 1988 Poole had a whopping 1 train an hour to Waterloo, compared to 3 pre-COVID. A fast train too calling only at Southampton and London beyond Bournemouth - useful for many, but anywhere else would require a change. Poole did have a fair few XC services but I don't recall there being a massive outcry when XC stopped serving it compared to many other destinations.
Of stations which haven't been mentioned:
Tiverton Parkway sees a rather better service than Tiverton Junction ever did, similar to how Filton Abbey Wood was a major upgrade on Filton.
Clifton Down used to have Bristol Zoo specials calling there, albeit the zoo is closing soon enough anyway.
Digby & Sowton has seen major passenger number increases since more housing was built there and Sandy Park opened.
Pinhoe has gone from seeing 3tpd each way 30 years ago to an hourly service now, more frequent than either Feniton or Whimple which used to be served by more trains. Again this is probably due to the relentless eastward expansion of Exeter.