It's more polite than "webshit", but the overall comment isn't making the case that the more polite term should be used... I'd like it if people calling themselves web engineers held themselves to a higher standard. And were able to see that even if someone is a webshit now, they might have been something else in the past, and something else again in the future, tech is such a great career space in that it's not incredibly difficult to change what domains you're working on. Even apart from general expertise that allows an engineer to go and review arbitrary code (with full understanding, and immediately? No, but you can get started, and find common areas and boundaries, and find who the main contributors are and who isn't so important, and draw big black boxes over areas that really need a specific expert's look, and there's tons of automated tools that can help too e.g. security audit consulting firms can find issues in huge codebases quite fast), it would be surprising if Tesla didn't already have some former Twitter employees already who could contribute to this review if it makes sense to use them. Let alone former employees from other companies that have systems similar to Twitter's. It'd be surprising if all the engineers selected were just people who have never worked for another company besides Tesla.
Did you graduate with an engineering degree or do you just like calling yourself a "web engineer"?