Let me be clear, Warwick is favorite bass of my choice.
I own several way more costlier basses in collection (top of line Ken Smith, Status, Sadowsky, Wal) and five Wicks, so no doubt about preferences and appreciation for brand itself.
In my honest opinion, MEC pickups and electronics (except possibly those made in 2010/2011 which I didn't try) are weak link of otherwise excellent instruments. It is obvious that majority of players are happy with them and don't change anything on bass (I bought all 5 Wicks used and all were 100% stock equipped).
Needless to say that on all five Wicks I swapped pickups and electronics with various alternatives from Bartolini, Nordstrand, Audere, John East, Delano and DiMarzio Model J.
They are different to each other (some being on very clean side like Delano, Audere or John East preamps) and some nicely coloured like Bartolini, but all without exception offered clear step up in dynamics, noise floor, EQing without any obvious drawback (well, except some money/time to be invested in them).
On pickups side, I agree that it might be matter of taste and that some players might prefer sound of MEC over sound of Bartolini or DiMarzio ModelJ (very obvious difference and mellower Bartolino sound might not be right thing for all), but even in this case there is clear feel that Bartolini's sound is more fundamental, complex and balanced than MEC.
Nordstrand or Delano pickups are like strong, refined versions of MEC, better in all respects while retaining Wicks original character. To say that MEC can do 80-90% % of same job is true, but difference will be evident to the player.
I think that no compromise is needed with any Wick that costs over 1500 $.
Also, there is no love for MEC among boutique bass builders (their choice is split between Bartolini, Nordstrand, Duncans, EMG, Villex, Delano, Q-Tuner, DiMarzio or some in house-made option), but practically no MEC.
We can argue to death about differences and tastes (I'll not continue on that), but fact is apparent that many Wick owners replaced MEC for something else and never looked back. I'm not aware of counter tendency for that.
For sake of being the best choice for bass players, Warwick should equip (at least) Dolphin NT, Thumb NT and Streamer NT models with better pickups and electronics, even at cost of increase of price (if done at factory it would cost fraction of price when bought from retailers). MEC can be used for Wicks lower level instruments for which many bass players don't care anyway.
If not, it is still the best choice, although it require further 100-400$ invested in upgrades.