I won't say I am rooting for them or anything, but it makes sense. Pakistan has been struggling against radical insurgencies on that side of the nation for quite awhile.

They've been tightrope walking tense relations with India and China as well.

Struggling? They're the ones who are encouraging it.

https://sundayguardianlive.com/news/pakistan-clear-path-for-lashkar-camp-near-afghan-border-revives-good-vs-bad-terrorist-strategy-150375/

In the past, Pakistan’s role has been positive. It has hosted five million Afghans for 50 years.

Strange way to talk about a historical pashtun border region that the British arbitrarily split. "We haven't genocided you"

Those are the terrorist groups in India, the have more terrorist groups at home. Such as over two weeks ago when the Pakistani capital was attacked by a suicide bombing.

Hmm. Who knew fostering terrorism (providing weapons, money, and other support to extra-governmental entities without any oversight) would backfire like this?

Face, meet leopards.

Wait, weren't the current Taliban trained by Pakistan?

It could also be that the terrorists fighting the Pakistan government have a different funding source, such as China and Russia or even the USA which was the case with Operation Timber Sycamore in Syria up until 2017.

Or, hell, since India's getting attacked by the Pakistani backed terrorists it's possible that India is backing the anti-Pakistani terrorists.

It can also even be a mixture of all of the above.