Thanks for rasing an interesting subject to discuss!
Yes, indeed, the 1994 tour was rather small, the venues chosen were mostly intimate and giving a feeling more of a club gig. Moreover, the tour had very little promotion and I even cannot recall a special poster/advert for any 1994 gig. But at the same time, through this small tour Chris visited the counties he could barely be remembered being in: Spain, Italy and Canada.
I assume, one of the main reasons for that was Chris's deep involvement into his big big project, La Passione. Espresso Logic was a kind of a "side project" and initially songs from it had been not supposed to form an album; it was Warner's unexpected decision to release Espresso as a full-length album. You can read a lot about it in a very good interview/article in Sound on Sound magazine from spring 1994: http://www.soundonsound.com/sos/1994_ar ... isrea.html
The other reasons may be, as you put it, being tired of big touring, crowded arenas and record executives pressure (go there, do that, etc.). Chris spoke in an early 90s interview about Warner's attemps to make a Pink Floyd style live show through his 1990 RtH tour and said it was quite not his cup of tea. So Chris agreed to promote Espresso album when asked by Warner only if the promotion would not be of a big scale and he could focus on his main project. Hence small venues, few dates, unexpected places, little publicity, etc.
Also I think Warner had already put a heap of money into La Passione by that moment, so it was another reason for not pushing Espresso and its singles into charts. Eventually, the album was not that high in the charts but sold well, being a trail of its predecessors.
Remember, 1998 tour was also rather small, only a few dates in UK, and most of the other few dates in Germany. And also that tour saw Chris's minimalization of the live instrumentation, only 4-piece band, which made the sound more of a club band! It was more or less all usual and full-blend through 1994 tour, though without back vocals and second keyboardist. But I recall it was in 1994 for the first time when Chris used drum machine upon a concert, performing Nothing to Fear. So, here is another sign of his experiments with "downshifting".