why Loki(tv series) is important for phase 4

After the announcement of the Loki tv series, a question raised "Why Loki recast in MCU after his death in the main timeline ".

So now we are going to explain why Loki is important for phase 4 as well as MCU (Marvel Cinematic Universe).

INTRODUCTION TO LOKI (TV SERIES )

Loki is an upcoming Disney + Television Series based on Marvel Comics adding continuity with Marvel Cinematic Universe.

This Television Series will be based on an MCU's character Loki. It is set to release on 9th Jun 2021.

Loki is one of the most favourite villains in the MCU, if you are a fan of Marvel Cinematic Universe then you'll know very well. Fan's love this character very much so Loki(tv series) is the way of profit for Marvel.
Loki can introduce and can give a good idea about the MCU multiverse before introducing the multiverse in Doctor Strange 2: Multiverse Of Madness.
Also, Loki would introduce villains of phase 4 and phase 5. Because as you know Loki whatever steps he takes causes a huge destruction example. New York battle, Age of Ultron was indirectly caused by Loki and etc. every big threat is indirectly caused by Loki. so, maybe he could be a reason for the big threat in Phase 4.

So, these are the reason why marvel recast Loki.