While logos are timeless in that they are not trendy, they should not be static. Your logo must be able to adjust to the current seasons. For instance, during the festive season or special days, you should be able to tweak it to display the same. When you do your logo with a graphic designer, such opportunities are not available. The designer believes in the static logo. Hence, it will be hard to align your logo with the prevailing trends. Also, you want a logo that will be adaptive to the marketing and branding trends.
A logo generator is a perfect option in these situations. The generator is available 24/7. So, you can tweak your logo anytime. It is also an online option meaning regardless of your location as long as you have an internet-enabled device, you can access your logo and perform any changes you want.
In a word, whether it is flexibility, turnaround time, or cost, logo generators are a better option than the graphic designers.