Yep-- I’m calling BS on the “many of them don’t have share counts” line. You’ve just fed yourselves more backlash and less credibility with the community that supports Twitter most.
And who are these “Several top customers” you speak of? How will those several top customers react when all the major influencers they’re looking to reach on Twitter decide to stop using it because Twitter is acting against their best interests?
Influential users understand the power of social proof on their sites-- you take that away and Twitter becomes a less important piece of their site. Couple that with the fact that the other social share buttons DO show counts, it makes Twitter a counter-active social proof that is easily discarded from the website altogether.
Some of my plugin’s users get in the hundreds of millions of unique visitors and they’ve tested this social proof theory. No counts = less shares = less traffic = bad for business.