Yes. For probably the majority of the high level composers the age of a said synth is clearly not an argument for their choice as long as this synth provides the sounds the composers are after for their tracks.
It is not the modernism nor the complexity but the beauty of their sounds which is the reason why we love so much Synth1, Pro-SoloVST (even if it is only 32-bit and despite its age), SQ8L (even if it is only 32-bit and despite its age), Crystal, all the HG Fortune synths even if their are only 32-bit and despite their ages, all the now discontinued Linplug synths, FM8 (which is 12 y.o. !), several SuperWave synths despite their ages, all the GForce synths despite their ages, all the old Korg KLC plugins despite their small GUIs and their age (2004 for some of them !), DiscoDSP Corona despite its age, several Elektrostudio synths despite their ages, Combo Model F and V despite their ages, Surge despite its age, etc. etc. etc.)
Simply because not only they sound excellent for our taste... but they are sometimes absolutely unique, with even some sounds that we don't find anywhere on more recent synths even by spending lots of tweaks on the knobs of these latter.
The age of a product is not an argument to say that it is better or worse than another one. Because "better" and "worse" are subjective words, and the most important is the resulting song (generally today a complex mix ! With three or four chords only where the main part of the track is in the rhythms ! And with tons of ultra-short envelopes and tons of effects !) and these subjective words refer generally only to personal tastes and affinities... rarely to the features given that even with old plugins in his tracks a very good musician will almost always do a very good sounding music with memorable melodies.
A common idea of today is that the number of features or their "recent appearance in developments" is an argument to make beautiful works. It is totally false, it's not a question of age nor of features... what actually makes beautiful works is the talent of the composer and of the player.