Probably due to the coaching etc. in the other countries plus maybe
even the acceptance (or unacceptance) in the club domestic level of
allowing such actions. But eventually, I'm sure young players in other
countries will want to bowl like that (if they can get away with it)
especially if they can earn big bucks in IPL etc. I did an analysis of
Muralitharan before he was allowed to bowl like this. (When Hair
called him for no ball and first brought to light his controversial
action). During that time it was a big controversy and he was very
circumspect about bowling like that. During those days if one saw his
wickets per test match etc. He had about 4 wickets per test match upto
that point. Once the ICC cleared him however and he could bowl like
that as much as he liked he went up to between 6 to 7 wickets per test
match and ended his career with an incredible 6 wickets per test match
getting 800 test wickets. But if you take away that controversial
action Muralitharan would still be regarded as a very good bowler who
got 4 wickets per test match. He would have probably still ended his
career at about 500 test wickets (or close to it). Harbhajan on the
other hand is an ordinary bowler who could benefit mainly due to his
suspect deliveries. Inspite of bowling suspect deliveries he has about
4 wickets per test match. Without it I believe he would have been
somewhere around 3 wickets or so per test match.
They should probably even allow the fast bowlers some leeway. That way
at least we might get bowlers who can bowl faster and make the matches
more interesting. Since batsmen today are all padded up and protected
all over their body. They have helmets etc. On top of that they only
allow one bouncer per over in test match cricket (or is it two). This
is ridiculous. So, if a fast bowler is already so hampered and at a
disadvantage maybe they should give some leeway to fast bowlers as
well. Would make test match cricket a whole lot more exciting to watch
with the batsmen hopping around. :)