Every style of techno has a subtle influence on other styles.
Whilst you might not like pounding grooves, plenty of the artists you do like will more than likely have been influenced by music that you yourself don't like.

Techno "getting back to its roots" sounds like a plaintive rosy tinted plea to restrict releases to a handful of manageable, universally praised and accepted stock of records.

All the "celery" techno serves a purpose. Whilst you might dislike 90% the odd record will come out that suddenly contains an original idea, and has an impact which ripples through other genres and sub-genres.

I'd rather people were prolific. It would be great if people only released inventive original records - but what a ridiculous unrealistic hope? Everyone releaseing original inventive records. Music is a hit and miss affair. Some of your ideas resonate, others won't. If people don't like you they won't buy or play your records. No one is forcing djs to play celery, or punters to buy it. They buy and play it because they like it. It gets released because there is a demand for it.

You are never going to have the same inventiveness with a mature form of music than you will with a fledgingly style. Before techno there was nothing. So everything that was done in the early days was remarkable by default.

People need to pull their head out of their arses at times.