Can I ask reviewers (via the editor) whether they lost track halfway through the paper? I submitted a paper to a journal in linguistics. It was accepted pending some minor revisions w.r.t. typesetting and a few sentences that had to be reformulated. The reviewers gave eight comments on the introductory section, comprising roughly 1/3 of the paper, and only one on the rest. On the one hand, this may be expected, because I am less proficient with the broader context of the introduction and had most difficulties writing that section. On the other hand, I'm slightly worried that the reviewers lost track of the train of thought halfway through the paper.

I would like to know if the reviewers got lost in the paper, and what I might do to improve it if necessary. However, I have not found a good way to ask the editor. I don't want to suggest that the paper should not be published or that the reviewers may have been lazy or stupid. How can I ask for more feedback? Or should I just assume that no comments means well written?

I do not know how many people reviewed the paper; the editor aggregated the comments before sending them to me.
This sounds like you wrote a good paper with some minor problems in the background/introduction that need fixing/polishing.

If reviewers get lost they should (and most likely will) mention that, and make you work a lot more. If, however, the editor and all reviewers have nothing to complain, your paper should be alright.