I don't know why this is a bad thing. Sure both reboots are trash but I love seeing how networks deal with crossovers. Heck, this December we are getting a Arrow, Flash, Super Girl and Legends of tomorrow crossover come December on the CW. If you think of it this could lead to better crossovers like Adventure Time X Regular show.
OR it'll be horribly done and they'll pretend it never happened and never happen again. If you want to talk about good crossovers, go watch Eureka! and Warehouse 13. They did a FANTASTIC job with their crossover cameos. They also very skillfully wove the 2 shows together (for instance, ALL of Warehouse 13's top secret tech was designed and made in Eureka.)
Also, a show I'd like to see rebooted? Reboot! (Yes, the old early 90s CGI show). The first 2 seasons were pretty random and only loosely connected, but EVERYTHING after that was absolutely great!