The Pit Raid is not end game content. I think that's the flaw in your argument. Tier 7 was designed and released when level 80 was the cap. Many people can solo it. Many people can solo it on auto. Many people can even solo it with less than 5 toons. The Tank Takedown Raid is also no longer end game content. It was designed and released when gear tier XI was the max. Several people have shown that with a strong roster it can be run by one person (using several teams). Both of these have been made substantially easier by the release of toons like Thrawn, BB-8, and CLS. TB is replaced them as end game so it is perfectly reasonable to expect that completion of these mid game raids is a prerequisite for mastery of TB. It's not meant for lower level guilds. This is why it doesn't unlock until level 65.
I'm not following your Logray reasoning either since without raids you only produce a couple hundred raid credits put day making Logray a multi year farm but I think continuing this half of the conversation might be a tangent.
