Sure, charging a reasonable price for additional content is fine. This has been happening for decades as expansions.

This feels particularly odd because Overwatch previously had events (Summer, Halloween, etc) where they released PvE content for free and the community loved it. I played a fair bit of Junkenstein and Lucio ball, it was exciting when it happened for a limited time.

I hope the missions have enough content to warrant the $15 USD price. OW2 disappointed me and it feels like every news article continues that trend.

I definitely used Reddit for troubleshooting and finding information. It was extremely helpful that it was indexed by search engines, I worry that instances won’t allow themselves to be indexed so the useful information will be harder to discover.