SPP Scaleback

I noticed that in 2012, AAD also undertook a $50m placement & SPP to fund acquisitions of health clubs etc. That capital raising and the acquistion was very successful. It is interesting to note that in the capital rasing of 2 years ago, retail investors were given the opportunity to participate in a SPP of $20m, which was oversubscribed by around $2m. AAD accepted those oversubscriptions.
This time again, our Company is acquiring health clubs, and undertook a $50m placement but for some unknown reason has chosen to limit the SPP to $15m.
My family has been a holder of AAD (previously MLE) since 2009 and has supported each of its SPPs. We would find it highly objectionable if AAD has suddenly decided to prejudice long term small shareholders by limiting their ability to participate in a dilutive share issue. Why are large shareholders and clients of UBS favoured when they may not even be shareholders or just short term speculative holders?
Interestingly, the scaleback mechanisn described in the documentation refers to size of holding but not the quality of holding ie long term or short term.
Hope other long term retail holders of this stock express their disapproval of any attempt to limit their participation in this capital raising. In the recent AHE SPP an attempt to limit retail participation and discriminate on size of holding appeared to have been stopped by prtests from holders