Shield gating is uncomfortable in late game since it is destroyed very fast and you have a small duration to fill it up or else you die instantly, and like I mentioned, Overguard became the new best thing and overshadowed everything else since it has a lot of benefits and it generally gives higher resistance amount than shields (since it scales with strength mods, which is very convenient in this current meta). To balance things out, an invincibility extension mod will be a very useful buff (if you didn't understand the concept, like I mentioned in my example, Excalibur's 1 gives invulnerability for a small duration, with this new mod, he will have his invulnerability for longer and thus staying safe for a longer period, which removes the need to "spam or die".) for Warframes that do rely on shield gating and especially the ones that are forced to shield gate since it's their only survive option in late game.