It feels like the culture of innovation they built is lagging, and like for many American companies losing their way, I wish they could make a case for a real reinvestment in research with a 10 year payback instead of a next quarter result. This is anecdotal and I've only worked with one division of 3M in the past, but i've seen changes in how they support companies downstream. It may just be how everything is changing everywhere.
They still make good products, and they're consistently very good but always premium priced.