Hmmm, that's an odd thing for your advisor to say.
It's easy to suggest prejudice, but in any refusal the ECO needs to say which rule(s) have not been met. Of course they still retain some discretion on those requirements that have some subjectivity, but that's where the immigration advisors need to stipulate why the applicant has met the requirement.
Anyway, as I've said the old rules on maintenance requirement looks both back at the adequacy of support and forward to the probability of continuing that level of support.
If you search the forum for pre-July applications and financial standing you will certainly see that your situation would have been good enough then, so must be good enough now. In fact I would suggest your level of savings is significantly higher than most folks whose income was down to the wire.
But Mark, please don't lose sight of the fact that pre-July applications did NOT rely on savings. There was no requirement to shown any specific savings ONLY REGULAR income that met the minimum requirement of income support minus rent/mortgage plus council tax and secured loans etc.
Sorry to keep stating the same thing but it is important. Don't forget that your council tax will increase as you are not living alone, so that will need to be factored into your disposable income.
Good luck Mark, I do hope you can get your wife over asap.