okay then by that logic we shouldn't use Kamui because the speed of Kamui is nerfed within the SL verse, it's much faster in the actual show and can be used much more frequently.
we shouldn't use hiraishin because we've nerfed it to where multiple hiraishins cannot be used in rapid succession (one post)
We shouldn't use Edo tensei because it's been nerfed to where no more than 3 bodies can be used at once and we can't use offensive attacks with the Edo tensei present
Yeah Chakra solidification is already present within the verse but this would be on a different degree because of the Tenseigan, making it much stronger than anyone who used chakra solidification without it, Unless you'd all prefer that we just have Ninjutsu cancelling black balls of death.
I would prefer there not to be a replacement for the balls of death. Heck, I might would even prefer that we drop this until we can see the entire movie in a language and format that we can comprehend so that we can fully analyze what was shown to be able to be done and what was not shown to be able to be done with it.
Hiraishin, Edo Tensei, and Kamui all debuted in the manga (last time I checked). Up until it was confirmed that Kamui and intangibility were one in the same, intangibility was treated as an entirely separate technique, and Kamui as Kakashi used it was hardly touched.
Hiraishin too was hardly touched until after it had been on SL for some time. I don't recall Tomi really adhering to any of the current hiraishin rules, especially the teacher-student rule.
Edo Tensei was not touched either until it was further shown in the manga during the 4th Great Shinobi War, and even then, not until people who actually used it in-game started using it did it really become a deal enough to start limiting.
Kamui is the only one of those two examples that does not have a "must be adhered to" list of rules. The only things nerfed about Kamui is intangibility, and that was to keep people from staying intangible for ridiculous amounts of times in posts (since in really close combat 5 minutes could take 4+ posts to get through) and to keep down the spam of long-range Kamui.
So much of this could have been avoided had the abilities of the Tensaigan closely mirrored that of the Rinnegan, with the replacement of the Paths being the ability to use Kaguya's variation of Dead bone Pulse KG (since the passed down variant would, in my system, be a requirement anyways). The ability to master all chakra natures being kept the same between the two, and the Tensaigan maintaining the Byakugan's visionary prowess.