[Amps] RF coupling to 8877 filaments?

[Mike McCarthy, W1NR]

I am in the process of building an 8877 amp and through the course of 
comparing various designs I came across one in Orr's Handbook where the 
input RF was coupled to the filaments with .01 capacitors. This, of 
course, adds an RF choke to the filament leads and is not done in most 
other designs I have looked at.

I think the article mentions this is to prevent or minimize RF heating 
of the filaments. Is this a valid reason? Are there some other reasons 
to do this?

I am seriously considering NOT implementing it and going with the Kiss 
approach. Opinions?

Thanks and 73 de Mike, W1NR