LOL, that's what you open with? Great Scott, Doc Brown! This is 2018, not 1998. You may want to hop in the DeLorean and travel back to the present.
I'll be generous with the definition of "most". Instead of "nearly all", I'm willing to settle for a simple majority. So, please give me your list of sixteen 6'10" (or taller) widebody power forwards who will be starting in the NBA this season. Go ahead, I'll wait...
Seriously, I went through a list of projected starting power forwards for all 30 teams and came up with 4 that are 6'10" or taller and could possibly be considered widebody:
Derrick Favors - OK, I"ll give you this one.
Paul Millsap - only 6'8", but I'm being generous.
Kevin Love - more of perimeter player these days, but he is 6'10" and reasonably wide.
Blake Griffin - like Love, he is more of a perimeter player these days. He spends much more time dribbling around the perimeter, passing and shooting face up jumpers than he does backing down people on the low blocks.
The one thing these guys have in common is they have all been in the league 8 - 12 years, and other than Favors, they are all spending as much, or more, time playing away from the basket than posting up near it. In other words, they are trying to adapt to the modern game where the 6'10" widebody starting power forward is teetering on the brink of extinction.
Millsap is a perfect example of how the position has changed over the past 12 years. His first three seasons in the league, his average made FG distance was in the 4 - 5 foot range. Mid-career, it increased to 8 - 10 feet. The last two seasons, playing for two different coaches in two different systems, his average made FG has been in the 11 - 12 foot range. Griffin and Love are a few years younger than Millsap, but their average made FG distance has also increased dramatically over the course of their careers. Both had made FG distance averages of about 7 feet early in their career. Last year Griffin was at 13.4 feet and love has been in the 14 - 15 foot range for the past 5 seasons.
Derrick Favors really is the only remaining 6'10" widebody starting power forward who still plays close to the basket.
Due to the way the game has evolved, there just hasn't been an influx of 6'10" wide body starting power forwards coming into the league. These days, you are much more likely to see veterans who came into the league as small forwards, or even shooting guards playing, the power forward position than you are traditional 6'10" widebody starting power forwards. Length is more important than width these days, and shooting range out to the 3-point line is MUCH more important than low post moves. At the power forward position, tall and thin is in, big and bulky is out. I guess you missed that memo.
BNM