Humphreys leaves to link up with Johnson, the newly installed director of rugby with Scotland who previously coached the Ospreys.
And while the absence of Humphreys will be keenly felt by Jones, the second-row insists his coach deserves his shot at the international game.
"Jonathan is a great guy first and foremost," said Jones
"He has had a big influence on my career and been here since I broke into the first team.
"I am very happy he is getting an opportunity at international level and it is a natural progression.
"I think it is well deserved after what he has done with the Ospreys."
Jones himself has now turned all of his focus to the British & Irish Lions tour to Australia this summer.
Jones was a tourist in 2009 to South Africa and started the first test alongside Paul O'Connell in the second row before being dropped for Simon Shaw.
This time around Jones faces an equally tough test to try and nail down one of the two lock Tests spots as he battles with Ospreys team-mate Ian Evans, Scotland second-row Richie Gray, Leicester's Geoff Parling and the last tour captain O'Connell.
"They have been the four stand-out locks in British and Irish rugby over the past two years," added Jones.
"So the competition will be huge for Test places and all of them are very good players.
"Paul O'Connell led the Lions last time and deserves all the accolades. I think having people like him and Brian O'Driscoll around will be great for Sam (Warburton) as captain, because they have such experience.
"The main thing for me is to go out to Australia, do myself justice and do well for the squad and that is the key.
"However selection falls, you have to be prepared to knuckle down and do your bit.
"There's a Test series to be won and every player has a part to play in that, whether he features against Australia or not."
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