The Hoops are closing in on their eighth consecutive league title and will be just two away from claiming the record.
Rangers won nine in a row between 1989 and 1997, matching Celtic’s previous record between 1966 and 1974.
The Ibrox club were refused entry to what was then the SPL after the club went into liquidation in 2012 and were subsequently demoted.
It took them four seasons to win their way back to the top flight.
Former Rangers defender Hendry believes Celtic’s trophy success over the recent history has been diminished because of the absence of Rangers.
Hendry told the Heart and Hand podcast: “It shouldn’t really be but I don’t think it was helped by the period where Rangers weren’t in the Premiership.
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“Everybody suffered. Celtic suffered because they didn’t have an Old Firm game to play and irrespective of them achieving what they are going to achieve, it’s not fully achieved because Rangers weren’t there for several years.
“So you can argue it until the cows come home but the fact is that Rangers were not in that league when they did win so they are talking about their treble trebles or their nine and ten-in-a-row, to all of us outside of Celtic it’s not really what it is.”