Wouldn’t be any more ads than previously. Radio stations have hourly quotas on the amount of time a station plays advertising.
They may have increased the number of ad blocks per hour by decreasing the amount of ads per block - netting out at the same amount of time advertising per hour but feeling like it’s more as the content is shorter between blocks.
Having a limited amount of advertisers which results in saturation frequency for listeners would also create the sense the amount of ads have increased.
Do these hourly advert quotas include Tim and Garry plugging companies or just official ads?