Would they?
The tldr.sh site prominently offers a sample of usage examples for a command; tar specifically. If one checks the tar man page there are no examples. This is policy, apparently promulgated by GNU et al. in favor of "info". I haven't the time right now to hunt down the official position, but here[1] is a SO discussion.
Should this TLDR thing correct that long standing mistake I'm all for it. Also, info is one of the most hostile TUI programs I've ever encountered and I resent using it.
[1] https://unix.stackexchange.com/questions/306189/why-dont-man...