I did not think of potential discrepancies between the French and English versions! I always use the English website for my Accor bookings in non-francophone countries in order to be able to argue with a mutually understandable printout if there is a point of contention.

As for your picture of the pool, and my pictures of yoga and non-Tamachi view rooms, I cannot find them anymore at the moment! A croire que somebody from Accor is following this thread
If so, please note that the Lit pliant sur roulette non autorisé instead of the usual Pas de lit d'appoint does not instill confidence in the fact the French version is the master copy... (vs a perfectly correct No rollaway allowed in English).

I duly note that the rooms with 2 single beds are described in English as having bathtubs, which had escaped me thus far. Rather odd as 2 single beds take more room than 1 king bed, and that hotels generally would not want to be locked into a bed type for a given room.
And what about the deluxe rooms only being available with 2 beds (and bathtub)? Whoever is progressively fixing the Pullman Tamachi's website should add whatever differentiates deluxe from superior rooms if they hope to sell them.

Don't get me wrong, I very much welcome this hotel's addition to the Accor portfolio and intend to stay there regardless of the presence of a bathtub or a pool, neither of which I tend to use in city business hotels.
Now, I recall the original, and now gone Pullman Tamachi room rendering showed what appeared to be a large window-side bathtub in a full-bay semi-open wet room, which struck me as very nice but odd in a low-rise city hotel surrounded by office buildings; it was also what got my hopes up about this hotel.
The only non-suite windowside tubs I am aware of in space-constrained Tokyo are in some corner rooms at the Cerulean (aging hotel, small tub), IC Tokyo Bay (rare room category, soon boring bay view - not much to attract the eye at night), Prince Gallery (my favorite Tokyo tub view ), Palace (soothing view), and Peninsula ('clinical' view with an unfortunately placed window frame) hotels, all of which have unimpeded views from their tubs.