with both dd1 and dd2, the last feed and bedtime are all at the same time. It was part of our bedtime routine to do a feed. As long as they're not in the habit of falling asleep while eating, it doesn't cause any EASY routine issues/independent sleep issues. dd2 has reflux, and we've AP'd, so she does fall asleep during the feed, and we're working on weaning that. But she'll still have a bedtime feed.
With dd1, dh would read while I bf, then we'd put dd1 in her sleep sack, sing, pray, shh/pat and pop her in the crib. So even if she fell asleep while feeding, the rest of the routine would rouse her enough that she'd be drowsy but awake when she went down. We kept that routine for as long as I bf (14 mos) and for awhile afterwards, she just had a sippy cup instead.