Hardware vs Software encoding ME vs PR

I was strugglign with major blocking issues in some transitions when rendering in ME from PR.  I was using settings in PR that resulted in a pop-up message saying that my hardwarew woudl not support the combo and PR stayed on Software only for the encoding.  I then export to ME.  In ME I am set in the dropdown in the encoding window to use hardware.  Even though PR said to render with software, ME followed the settign in the dropdown and used hardware.  Once I noticed this disconnect I changed ME to use software and then the blocking on transitions went away.  In particular I was using a VBR  2-pass encoding that the hardware option does not support.  Should ME have an option to follow whatever PR says to use instead of using somethign that does not work?  Since ME can queue up lots of renders, not all of which will work with hardware, it seems wrong to override what PR indicates and use the default in the ME window.