Yeah, here’s the gist of it-
1. Lego did it officially in the 70s. (Josh was wrong)
2. For whatever reason, lego stopped doing it 3. until very recently.
3. We all have done it since the 70s anyway.
Unless we got LEGO to make an official comment (maybe one already exists…). It’s all moot. It was and is.
LEGO has apparently made an official comment, not in any written or verbal statement, but in the design of the new Saturn V rocket set. The American Flag which goes with the Lunar Lander portion of the set is a printed 1×2 clear tile which is WEDGED between two studs – see picture here: http://www.brothers-brick.com/2017/04/28/lego-unveils-largest-ideas-set-yet-21309-nasa-apollo-saturn-v-news/#more-90266. So this type of connection is back (at least for this one set). :-p