On the contrary, it is the mainstream church that Jesus is talking about.
In Jesus's day, it is the scribes and Pharisees along with the priesthood who were the equivalent of today's mainstream church, and it is these people that Jesus was referring to in the scripture you posted.
The start of the whole discourse makes the intended target clear.
Matt5v20For I say to you that unless your righteousness shall abound above that of the scribes and Pharisees, you shall never enter into the kingdom of the heavens.
And here is what follows the scripture you posted.
28And it came to pass, when Jesus had finished these words, the crowds were astonished at His teaching. 29for He was teaching them as one having authority, and not as their scribes.
It looks pretty slam dunk to me!
It is these "mainstream" religious people who were doing the things your scripture lists, and both scripture and lengthy history records that it was these mainstream religious people who persecuted and killed those who received the Holy Spirit.