Sevagoth's Shadow not affected by Helminth invigoration

[MajitsuPrime]

Just invigorated my Sevagoth with, among other things, +75% efficiency. This does not carry over to his shadow unfortunately.
Is this a conscious decision? It would make sense either way but obviously it would be more fun if it did.

• How can this bug be reproduced?
  Invigorate Sevagoth and then take a peak at the stats of his Shadow.
• What was happening before the issue started?
  Nothing of note.
• Can you provide your build and game settings?
  This is probably irrelevant.
• What kind of squad were you in? Solo, host, client?
  Solo, in orbiter.
• Can you share any images or a video of the bug?
  • two pics attached